Pressure accumulator for rock drills



FIG. 1 is a front perspective view of a pressure accumulator for rock drills showing our new design;

FIG. 2 is another front perspective view thereof;

FIG. 3 is a rear perspective view thereof;

FIG. 4 is a front view thereof;

FIG. 5 is a rear view thereof;

FIG. 6 is a top view thereof;

FIG. 7 is a left side view thereof;

FIG. 8 is another rear perspective view thereof;

FIG. 9 is a bottom view thereof; and,

FIG. 10 is a right side view thereof.

The broken lines in FIG. 7 show portions of a pressure accumulator for rock drills which form no part of claimed design. 

CLAIM The ornamental design for a pressure accumulator for rock drills, as shown and described. 